CVE-2021-34829

HIGH
8.8
CVSS Score
Published: July 15, 2021 at 05:35 PM UTC
Updated: June 17, 2026 at 03:56 AM UTC
2 products affected across 1 vendorDap 1330 FirmwareDap-1330

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Severity
HIGH8.8
Exploit prediction
EPSS 2%

Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1330 1.13B01 BETA routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the HNAP_AUTH HTTP header. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-12065.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

1.13B01 BETA1.13b01 beta
dlink-dap-1330 (same device)
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCThird Party AdvisoryVDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-21-681/

CVSS

Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-120

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